Take it to the garage and have them check for a cracked rotor or a loose caliper.
The pumping and releasing of brakes by the unit is brake pressure modulation
Be pointless. The point of anti-lock brakes it to effectively "pump" the brakes for you.
Stop the car in a pulsating manner.
Gently pumping your brakes.
Pumping brakes can help restore pressure to the brake calipers temporarily. But this method wont work if the vehicle is equipped with ABS, or anti-lock brakes. Usually, down shifting will help slow the vehicle down, but not stop completely.
Gently pumping your brakes.
try spitting on the front rotors. This helped and my brakes are like new
Loose wheel; brake problems; bad bearing; something else? Whatever it is it's serious. Check it right away.Answerthe thumping you hear are the potholes you drive over and drp into that's why you don't hear it when you press the brakes.
Probably either from air in the lines or the master cylinder leaking and in need of repair before the brakes go out entirely. To tell the difference, if you pump up the brakes and hold pressure on the peddle and it stays up and then you let off of the peddle and it goes down, it is probably air, bleed the brakes. If after pumping up the brakes and holding pressure it slowly leaks down, you are either losing fluid somewhere or the master cylinder internal seals are bad, fix them before the brakes are gone when you need them.
Bad Ball Joint
go for an alignement
Because you possibly had a leak and kept pumping till most of the fluid ran out .